Wesenberg Castle is a medieval motte-and-bailey castle. Of the original castle, only the bergfried tower and an adjacent part of the former ring wall survives. The castle was founded by Nicholas I of Werle during the middle of the 13th century, as protection for the city of Wesenberg. Among other things, the castle served as a residence for the widow of Duke Ulrich II of Mecklenburg-Stargard, Catherine. The castle was largely destroyed by a fire in 1630. Today, the castle is owned by the city of Wesenberg and since 1950 it houses the offices of the local forestry administration.
References:Sigmaringen Castle was first mentioned in the year 1077 in the chronicles of Petershausen monastery. The oldest parts of the castle are concealed beneath the alterations made during the 17th and the 19th centuries. The secret of the earliest settlement built on this defendable rock will never be fully revealed: large-scale excavation work would be necessary, which the extensive land development renders impossible. Judging from the many Roman remains unearthed in the area around Sigmaringen, the 12th century keep known as the 'Roman Tower' could be traced back to a Roman predecessor.
The castle remains that have been preserved (gate, great hall and keep) date back to the Staufer period around 1200. The castle remains were integrated into subsequent buildings. The foundations of the castle buildings are to a large extent identical to the surrounding castle wall.
These remains give us a good idea of how the castle might have looked during the 12th century.